As you can imagine we get asked questions all the time about flooring installation, especially what type of floor a covering can be laid on top of.
A common misconception is that Sheet Vinyl can be laid directly over the top of floor boards.
"Hi, I really like your MOROCCAN STYLE CUSHIONED VINYL FLOORING SHEET SAFI04 For my bathroom but I’m not sure if I need underlay aswell? We would take the carpet up and it’s bare wood underneath. "
For sheet vinyl to remain at it's best for as long as possible it needs to be laid over a smooth and solid surface. So, in your case, with your wood floor boards, you will need to lay plywood first.
If you can imagine, over time the grooves from the wood planks and the gaps between the floorboards will show. Not only is that unsightly but it will accelerate wear and tear. Even when it is our superior quality, thick, cushioned, sheet vinyl.